Battery box
Through the formation of a battery box structure with the fixed ring under the pipe cutting and rolling, the existing battery box is solved for deformation and breaking during the processing process, simple processing and high yield rate are achieved, and production costs are reduced.
Patent Information
- Application Number
- CN202422409258.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-08
- Publication Date
- 2025-08-26
- Estimated Expiration
- 2034-10-08
AI Technical Summary
The existing battery box structure is prone to deform or break during processing, resulting in high processing difficulty, high defect rate, and increasing production costs.
Pipe is cut into a box, and a lower limit ring and a lower fixing structure are provided at an open end. The lower fixing ring is formed by rolling, and the positive electrode cover and box are fixed with the upper fixing structure to avoid extreme stretching.
It reduces processing difficulty, improves yield, and reduces production costs.
Smart Images
Figure CN223273371U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a new energy battery, in particular to a battery box. Background Art
[0002] As environmental protection and sustainable energy development become increasingly important, global attention and demand for new energy sources continue to grow, giving new energy a broad development prospect. With the continuous advancement of battery technology, the continuous improvement of charging infrastructure, and the gradual reduction of costs, new energy batteries will become more popular.
[0003] The existing battery case structure consists of a case body with a negative electrode cover and a positive electrode cover fixed to the opening of the case body. Both the negative electrode cover and the case body are integrally stamped from sheet metal. This forming method subjects the sheet metal to extreme stretching to form the case structure, making it susceptible to deformation and even breakage during the stretching process. This makes battery cases with this structure difficult to manufacture and results in a high defective rate, significantly increasing production costs. Utility Model Content
[0004] The purpose of the utility model is to provide a battery box, which is simple to process and has a high yield rate, thereby reducing the production cost of the product.
[0005] The above technical objectives of the present utility model are achieved through the following technical solutions: a battery box, comprising: a positive electrode cover; a box body, which is configured as a tube with two open ends; a negative electrode cover; a lower limit ring, which is arranged at one of the open ends of the box body; a lower fixing structure, which is configured to cooperate with the lower limit ring to limit the movement of the negative electrode cover located in the box body along the length direction of the box body; and an upper fixing structure, which is configured to fix the positive electrode cover and the box body.
[0006] By adopting the above technical solution, the tube is cut into a box body, and a lower retaining ring is machined at one of the open ends of the box body. The lower retaining ring is then used to secure the negative electrode cover with a lower fixing structure, and the positive electrode cover is then secured with an upper fixing structure, thus completing the production of the battery box. This processing method does not require extreme stretching of the material, thereby reducing processing difficulty, improving product yield, and lowering production costs.
[0007] It is further configured as follows: the lower fixing structure is a lower fixing ring provided on the box body and located on the side of the negative electrode cover opposite to the lower limiting ring, and the lower fixing ring abuts against the negative electrode cover and is tightly pressed against the lower limiting ring.
[0008] By adopting the above technical solution, the lower fixing ring cooperates with the lower limiting ring to abut against both sides of the negative electrode cover, thereby achieving fixed installation of the negative electrode cover.
[0009] It is further configured as follows: the lower fixing ring is formed by bending the box body and is convex toward one side of the interior of the box body.
[0010] By adopting the above technical solution, the box body is bent and deformed by rolling to form the lower fixing ring to limit the negative electrode cover. This processing method is easy to operate and has low processing costs.
[0011] It is further configured that: the position where the negative electrode cover abuts against the lower fixing ring forms a pressing inclined surface that expands outward and gradually tilts away from the lower fixing ring.
[0012] By adopting the above technical solution, the arrangement of the abutting inclined surface increases the contact surface with the lower fixing ring, thereby improving the stability of the abutting structure.
[0013] It is further configured as follows: the upper fixing structure includes an upper fixing ring that is sleeved on the outer periphery of the box body and connected to the positive electrode cover, and multiple fixing points connecting the upper fixing ring and the box body, and the multiple fixing points are distributed around the outer periphery of the upper fixing ring.
[0014] By adopting the above technical solution, the positive electrode cover is connected to the upper fixing ring and is sleeved on the open end of the box body, and then the two are fixed by the set fixing points, so as to achieve the fixed installation of the positive electrode cover on the box body.
[0015] It is further configured that: the fixing point is formed by a depression of the upper fixing ring and is embedded into the outer peripheral wall of the box body.
[0016] By adopting the above technical solution, the upper fixing ring is deformed by stamping and then embedded into the outer peripheral wall of the box body, thereby achieving fixed installation between the two.
[0017] It is further configured that: a position where the positive electrode cover abuts against the open end of the box body is provided with an embedding groove for the open end of the box body to be embedded.
[0018] By adopting the above technical solution, the setting of the embedding groove increases the sealing contact surface, thereby achieving better protection.
[0019] In summary, the present invention has the following beneficial effects: the present invention is simple to process and has a high yield rate, thereby reducing the production cost of the product. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a structural diagram of an embodiment;
[0021] Figure 2 for Figure 1 Enlarged view of part A in the middle;
[0022] Figure 3 for Figure 1 Enlarged view of part B in the middle.
[0023] In the figure: 1, positive electrode cover; 2, box body; 3, negative electrode cover; 4, lower limit ring; 5, lower fixing ring; 6, tightening inclined surface; 7, upper fixing ring; 8, fixing point; 9, embedding groove. DETAILED DESCRIPTION
[0024] The present invention will be described in further detail below with reference to the accompanying drawings.
[0025] refer to Figures 1 to 3 A battery case includes: a positive electrode cover 1; a case body 2, configured as a tube with two open ends; a negative electrode cover 3; a lower retaining ring 4, integrally provided at one of the open ends of the case body 2; a lower fixing structure, configured to cooperate with the lower retaining ring 4 to limit the movement of the negative electrode cover 3 within the case body 2 along the length of the case body 2; and an upper retaining structure, configured to secure the positive electrode cover 1 to the case body 2. The lower retaining ring 4 is formed by rolling the case body 2.
[0026] The lower fixing structure is a lower fixing ring 5, located on the side of the negative electrode cap 3 facing away from the lower retaining ring 4. The lower fixing ring 5 abuts the negative electrode cap 3 and is tightly pressed against the lower retaining ring 4. The lower fixing ring 5 is integrally formed with the case body 2 and is stamped from the case body 2, protruding toward the interior of the case body 2. The negative electrode cap 3 abuts the lower fixing ring 5, forming a chamfered surface 6 that expands outward and gradually slopes away from the lower fixing ring 5.
[0027] The upper fixing structure includes an upper fixing ring 7 that fits over the outer periphery of the case body 2 and is integrally connected to the positive electrode cap 1. It also includes multiple fixing points 8 connecting the upper fixing ring 7 to the case body 2. These fixing points 8 are distributed around the outer periphery of the upper fixing ring 7. The fixing points 8 are formed by stamping the upper fixing ring 7 and are embedded into the outer wall of the case body 2. The positive electrode cap 1 is bent at the location where it abuts the open end of the case body 2 to form a groove 9 into which the open end of the case body 2 fits. Both the groove 9 and the upper fixing ring 7 are stamped from the positive electrode cap 1. All of the above features are made of metal.
[0028] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.
Claims
1. A battery box, characterized in that: include: A positive electrode cover (1); a box body (2) configured to be tubular with two open ends; a negative electrode cover (3); a lower limiting ring (4) configured to be disposed at one of the open ends of the box body (2); a lower fixing structure configured to cooperate with the lower limiting ring (4) to limit the movement of the negative electrode cover (3) located in the box body (2) along the length direction of the box body (2); and an upper fixing structure configured to fix the positive electrode cover (1) and the box body (2).
2. The battery box according to claim 1, wherein: The lower fixing structure is a lower fixing ring (5) provided on the box body (2) and located on the side of the negative electrode cover (3) opposite to the lower limiting ring (4); the lower fixing ring (5) abuts against the negative electrode cover (3) and is tightly pressed against the lower limiting ring (4).
3. The battery box according to claim 2, characterized in that: The lower fixing ring (5) is formed by bending the box body (2) and is arranged to protrude toward one side of the interior of the box body (2).
4. The battery box according to claim 2, characterized in that: The negative electrode cover (3) abuts against the lower fixing ring (5) to form a pressing inclined surface (6) that expands outwards and gradually tilts away from the lower fixing ring (5).
5. The battery box according to claim 1, wherein: The upper fixing structure comprises an upper fixing ring (7) which is sleeved on the outer periphery of the box body (2) and connected to the positive electrode cover (1), and a plurality of fixing points (8) which connect the upper fixing ring (7) and the box body (2), wherein the plurality of fixing points (8) are distributed around the outer periphery of the upper fixing ring (7).
6. The battery box according to claim 5, characterized in that: The fixing point (8) is formed by a depression of the upper fixing ring (7) and is embedded into the outer peripheral wall of the box body (2).
7. The battery box according to claim 1, characterized in that: The position of the positive electrode cover (1) abutting against the open end of the box body (2) is provided with an embedding groove (9) for the open end of the box body (2) to be embedded.